geojson-validator 0.1.0

Validates and fixes GeoJSON

Validate and automatically fixes invalid GeoJSON. 🌎 Webapp and 🐍 Python package.

The only tool that addresses all issues:

• Invalid GeoJSON according to specification: e.g. duplicate nodes, wrong winding order, unclosed
• Problematic with some tools & APIs: e.g. self-intersection, holes, crossing anti-meridian

🎈 Try it out: geojson-validator webapp 🎈

Python package

Installation

pip install geojson-validator

Validate GeoJSON

Input can be any GeoJSON (dictionary, filepath, url), shapely geometry, or anything with a __geo_interface__.

import geojson_validator

geojson_input = {'type': 'FeatureCollection',
                 'features': [{'type': 'Feature', 'geometry':
                     {'type': 'Polygon', 'coordinates': [[[-59.758285, 8.367035], ...]]}}]}

geojson_validator.validate(geojson_input)

The result gives the reason and positional index of the invalid geometry.

{"invalid": 
      {"duplicate_nodes": [2]},
 "problematic": 
      {"self_intersection": [0, 2], 
        "crosses_antimeridian": [1]},
 "count_geometry_types": 
      {"Polygon": 2, 
        "MultiPolygon": 1}}

Fix GeoJSON

Coming Soon!

Parameters

It is possible to select only specific criteria for validation and fixing. For comprehensive criteria descriptions, see the geojson-invalid-geometry list.

# Invalid according to the GeoJSON specification
criteria_invalid = ["unclosed", "duplicate_nodes", "less_three_unique_nodes", "exterior_not_ccw", 
                    "interior_not_cw", "inner_and_exterior_ring_intersect", "crs_defined", 
                    "outside_lat_lon_boundaries"]

# Problematic with some tools & APIs
criteria_problematic = ["holes", "self_intersection", "excessive_coordinate_precision", 
                        "more_than_2d_coordinates", "crosses_antimeridian"]

geojson_validator.validate(geojson, criteria_invalid, criteria_problematic)

TODO:

• Put on website projects
• Automatically fix geometries
• Release 0.1, delete 0.0.1
• Check for incorrect geometry data type in type vs. geometry pattern
• bbox order and other criteria
• Multihtreading?
• Add tests for invalid/prob for each geometry type (gpt)
• refactor main
• add bbox option?

No:

• Filsupport wkt etc. that would require more dependencies.